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Finding the Fourth Proportional to 611,712,000.40, 917,568,000.60 and 544,825,958.80

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Solution

The fourth proportional to 611,712,000.40, 917,568,000.60 and 544,825,958.80 is: 817,238,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,712,000.40 : 917,568,000.60 = 544,825,958.80 : x
  2. Step 2: Convert to fraction form
    611,712,000.40/917,568,000.60 = 544,825,958.80/x
  3. Step 3: Cross multiply
    611,712,000.40x = 917,568,000.60 × 544,825,958.80
  4. Step 4: Simplify right side
    611,712,000.40x = 499,914,865,691,093,952
  5. Step 5: Solve for x
    x = 499,914,865,691,093,952/611,712,000.40
  6. Step 6: Final answer
    x = 817,238,938.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.